The insurance giant’s website was down for an extended time this week following the breach.
CNA was the victim of a “sophisticated” insurance cyberattack on March 21 and the website remained down until Wednesday, as of the writing of this article.
The Chicago based insurance giant issued a statement regarding the attack on Tuesday evening.
At that time, CNA said the insurance cyberattack had “caused a network disruption”. It said that this disruption had affected a number of the company’s systems, including its corporate email. Among the disruptions also included the website’s functionality.
“Out of an abundance of caution, we have disconnected our systems from our network, which continue to function,” said the company. “We’ve notified employees and provided workarounds where possible to ensure they can continue operating and serving the needs of our insureds and policyholders to the best of their ability.”
The insurance cyberattack crippled the company’s website, which then showed only a static display statement.
The official website for the company, cna.com, has been showing a static display with a message regarding the breach. It also provides a dedicated email inbox for handling claims until the website outage has been resolved.
CNA Financial employs approximately 5,800 around the world. It is among the largest commercial property and casualty insurers in the United States. Last year, its revenue was around $10.8 billion, according to the company’s financial reports.
Beyond notifying law enforcement, CNA also stated that it had hired the services of a third party forensic expert team. They will be conducing an investigation with the intention of pinpointing the full extent of the breach.
“Should we determine that this incident impacted our insureds’ or policyholders’ data, we’ll notify those parties directly,” said a statement from CNA.
The company, a Loews Corp. subsidiary, was founded in 1967. The history of its predecessor insurers extends as far back as 1897. For over four decades, the insurer was 
best recognized in its home city for its iconic South Wabash Avenue corporate headquarters. That said, it moved into a high rise on North Franklin Street in 2018. This is the largest insurance cyberattack in the company’s history.
